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Supercharging a higher mileage M3?

 
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jdob28



Joined: 10 Aug 2003
Posts: 176
Location: Newnan, GA USA

PostPosted: Fri Oct 01, 2010 3:10 pm    Post subject: Supercharging a higher mileage M3? Reply with quote

I have a 99 M3 with 154k miles. Am I asking for trouble if I install a 7 psi supercharger kit? I am looking at a kit from Active Autowerke. Is it worth the investment, its $4400? Will I be destroying my motor/drivetrain? I purchased the car with 140k miles so the past maintenance is unknown, however, the seller told me it was well cared for. Any thoughts?
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94 325IC / 98 328IC (sold) / 98 318TI / 99 M3 (e36)
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edjack



Joined: 04 Feb 2002
Posts: 3887
Location: San Jose, CA

PostPosted: Fri Oct 01, 2010 10:52 pm    Post subject: Reply with quote

You're on your own. Any engine with that mileage is suspect, especially with no service history, not to mention an M3.

If you REALLY want to do this, rebuild the engine before you put the blower on it. Put in lower compression pistons, too.

OTOH, you can install the blower, as is, and wait for the engine to grenade.
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'97 540i 6 speed Aspensilber over Aubergine interior.
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M3 GT Athens



Joined: 14 Feb 2006
Posts: 18

PostPosted: Thu Oct 21, 2010 6:11 pm    Post subject: Reply with quote

1. Check out the compression, the oil consumption, fuel injectors, radiator & hoses and go for it!
2. Just remember to re-programm your ECU for the new set up (A.F.M.)
3. You will have to use a bigger or even an extra fuel pump.
4. Do not go over 7 psi of boost.
5. After testing your car with a supercharger kit you will be.. Very Happy Very Happy Very Happy happy!
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